package com.sky.controller.user;

import com.sky.constant.StatusConstant;
import com.sky.entity.Dish;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;


@RestController("userDishController")
@RequestMapping("/user/dish")
@Slf4j
@Api(tags = "C端-菜品浏览接口")
public class DishController {
    @Autowired
    private DishService dishService;
    @Autowired
    private RedisTemplate redisTemplate;

   /* *//*根据分类id查询菜品*//*
    @GetMapping("/list")
    @ApiOperation("根据分类id查询菜品")
    public Result<List<DishVO>> list(Long categoryId) {
        //构造redis中的key，规则：dish_分类id
        String key = "dish_" + categoryId;

        //查询redis中是否存在菜品数据
        List<DishVO> list = (List<DishVO>) redisTemplate.opsForValue().get(key);
        if (list != null && list.size() > 0) {
            //如果存在，直接返回，无需查询数据库
            return Result.success(list);
        }

        /////////////////////////////////////////
        Dish dish = new Dish();
        dish.setCategoryId(categoryId);
        dish.setStatus(StatusConstant.ENABLE);//查询起售中的商品

        //如果不存在，查询数据库，将查询到的数据放入redis中
        list = dishService.listWithFlavor(dish);
        //////////////////////////////////////
        redisTemplate.opsForValue().set(key, list);
        return Result.success(list);
    }
*/
   /*根据分类id查询菜品*/
//使用Spring Cache
   @GetMapping("/list")
   @ApiOperation("根据分类id查询菜品")
   @Cacheable(cacheNames = "dishCache",key = "#categoryId")
   public Result<List<DishVO>> list(Long categoryId) {
       log.info("根据分类id查询菜品:{}",categoryId);
     //1.构造查询条件
       Dish dish = new Dish();
       dish.setCategoryId(categoryId);
       dish.setStatus(StatusConstant.ENABLE);

       //2.查询数据库
       List<DishVO> dishVOList =dishService.listWithFlavor(dish);

       //3.返回结果（Spring Cache会自动将结果存入缓存）
       return Result.success(dishVOList);
   }

}
